Objective:To investigate the dynamic mechanical properties of concrete under the coupling action of high strain rate and saturation.Methods:The Hopkinson pressing bar(SHPB)test is used to conduct dynamic impact test of different saturation and analyze the dynamic σ-ε curve and dynamic mechanical parameters.Results:The shape of dynamic σ-ε curve of concrete with different saturation is similar.The dynamic compressive strength and elastic modulus of concrete increase linearly with the strain rate,and increase with saturation,with no obvious relationship with the strain rate.Conclusion:The dynamic mechanical properties of different saturation concrete at high strain rate can provide theoretical basis for later engineering design and quality detection.
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